Problem With FSX

[Eiiic]

i'm having a problem moving right and left on the ground
with the aircraft. can anyone tell me what the deal with
this. i dont have my autopilot on nothing wrong with my
joystick ( ha ha i said stick  ::)) can anyone help me with
this. it would be very wonderful if someone do that or
have any slight idea what it is. and one question is it
wise to use ur spoiler in the air to slow down the jet i
hope that not to retardish to ask or anything i know we
suppose to use the spoiler once we hit touch down but
is it wise to use it in the air at a certain degree to ease
speed and yes alone with the flap.

[KDSM]

use the rudder to turn when taxiing.the "/" key is the spoiler and it disprupts airflow over the top of the wing causeing it to lose lift and is used so the plane doesnt float halfway down the runway before touching down.

[Daube]

The airbrake, as mentionned above, will reduce the lift of your wing.
So if you fly level, you maintain a stable angle, and trigger the airbrake, your plane will loose altitude. You will have to raise your noze to fly level again, so you will increase your angle of attack, so you will produce more drag, so you will slow down.